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Connect Gmail or Google Workspace

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TL;DR
  • Host smtp.gmail.com, port 587 with STARTTLS (or 465 with SSL).
  • Use an app password, not your normal Google password (requires 2‑Step Verification).
  • Google limits how many emails an account can send per day.
Setting Value
Host smtp.gmail.com
Port 587 (leave Use secure (TLS/SSL) off, STARTTLS is used) or 465 (turn it on)
Username Your full Gmail or Google Workspace address
Password A 16‑character app password

Create an app password

Section titled “Create an app password”
  1. Turn on 2‑Step Verification for the Google account.
  2. Open your Google Account → Security → App passwords.
  3. Create a password for “FlowSend” and copy it into the FlowSend Password field.

Google Workspace admins can block app passwords. If the option is missing, ask your admin or use a sending service such as SendGrid.

Limits

Section titled “Limits”

Google applies daily sending limits per account. For higher volumes, use a dedicated sending service.